Device for winding-up material webs

Abstract

A winding device includes a support roller receiving strips of a material web to be wound up on two coil rollers mounted on respective winding supports flanking the support roller and movable parallel to an axis of the support roller along with respective electric motors actuating respective drive heads and getting cooled by respective flexible carriers movable along with the winding supports.

I claim: 
     
       1. A device for winding up of material webs, especially paper webs or cardboard webs, transported along a web path, the device comprising: slitting means along a web path for subdividing the web into individual strips;   a driven support roller downstream of the slitting means rotatable about a support axis and receiving the strips; and   a pair of winding stations spaced radially from the support axis to opposite sides thereof for withdrawing the strips from the support roller, each of the winding stations comprising: a plurality of winding brackets and movable radially toward and away from the support axis and displaceable parallel to the axis for coiling strips of different format,   a respective angle drive mounted on each support element and displaceable therewith for rotatably driving a respective coiling roll winding up a respective strip,   a respective electric motor connected with each angle drive and inclined to a horizontal, each electric motor being provided with a respective housing and each angle drive being provided with respective flanges for connecting with the respective motor, each motor being displaceable with the respective support element actuating the angle drive, and   respective flexible cooling means providing a cooling medium for cooling the electric motor enabling shifting thereof along with a respective one of the support elements, each cooling means including:   bendable supply tubing conveying cooling liquid,   circulating cooling passages formed in each housing, and   cooling passages formed in each flange, so that the heat developed in each motor and each angle drive is carried off upon circulating of cooling liquid.     
     
     
       2. The device defined in claim 1, further comprising control means for controlling a torque of each of the electric motors thereby regulating a coil hardness of a respective coil roll. 
     
     
       3. The device defined in claim 2 wherein each motor is a polyphase asynchronous motor having a stator coil cooled with a liquid cooling medium selected from the group consisting of water and oil. 
     
     
       4. The device defined in claim 2 wherein the control means is a frequency converter controlling the electric motors. 
     
     
       5. The device defined in claim 1 wherein the motor is a direct current motor whose stator winding is cooled with a liquid cooling medium selected from the group consisting of water and oil.